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US 9,316,622 B2Granted
Microwave vibration sensors
AssigneeHamilton Sundstrand Corporation
InventorsPeter L. Jalbert, Gary M. McBrien
Life of this patent
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Abstract
A vibration sensor includes a probe body with a vibration isolator operatively connected to the probe body for isolation of the probe body from vibrations of a structure to be monitored for vibration. A waveguide is operatively connected to the probe body to convey microwaves to and from a surface for sensing vibration of the structure to be monitored for vibration.
Claims4
A vibration sensor comprising:
- a probe body with a vibration isolator operatively connected to the probe body for isolation of the probe body from vibrations of a structure to be monitored for vibration;
- a waveguide operatively connected to the probe body to convey microwaves toward and away from a surface for sensing vibration of the structure to be monitored for vibration;
- and
- a microwave reflective cap operatively connected to the vibration isolator with a space bounded by the probe body and cap for passage of microwaves to and from the wave guide, wherein the cap is configured and adapted to be mounted to the surface for sensing vibration thereof.
1 more element
A vibration sensor comprising:
- a probe body with a vibration isolator operatively connected to the probe body for isolation of the probe body from vibrations of a structure to be monitored for vibration;
- a waveguide operatively connected to the probe body to convey microwaves to and from a surface for sensing vibration of the structure to be monitored for vibration;
- a reflector operatively connected to the probe body spaced apart from the waveguide for reflecting microwaves into the waveguide;
- a cap operatively connected to the vibration isolator, wherein the cap is configured and adapted to be mounted to a surface for sensing vibration thereof, and wherein the reflector is operatively connected to the cap within a space bounded by the probe body and cap;
- and
- a pedestal connecting between the reflector and the cap, wherein the reflector has a mass, and wherein the mass of the reflector and at least one of a spring coefficient and a damper coefficient of the pedestal are tuned to amplify vibration of the reflector in response to vibrations of a predetermined frequency in the structure to be monitored for vibrations.
3 more elements
Dependencies are inferred from the claim text.